linux-kernel - Re: i915_do_wait_request BUG: unable to handle kernel NULL pointer dereference at (null)

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Message-Id: <201004231827.02817.toralf.foerster@gmx.de>
Date:	Fri, 23 Apr 2010 18:27:02 +0200
From:	Toralf Förster <toralf.foerster@....de>
To:	Jesse Barnes <jbarnes@...tuousgeek.org>
Cc:	Zdenek Kabelac <zdenek.kabelac@...il.com>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	eric@...olt.net
Subject: Re: i915_do_wait_request BUG: unable to handle kernel NULL pointer dereference at (null)


Jesse Barnes wrote at 18:08:57
> On Fri, 23 Apr 2010 12:24:25 +0200
> 
> Zdenek Kabelac <zdenek.kabelac@...il.com> wrote:
> > Hi
> > 
> > Just tried to boot current vanilla upstream kernel - and got pretty ugly 
> > oops. Here is serial console catch after X-startup:
> > 
> > 
> > BUG: unable to handle kernel NULL pointer dereference at (null)
> > IP: [<ffffffffa035de81>] i915_do_wait_request+0x101/0x4f0 [i915]
> > PGD 139649067 PUD 133b5a067 PMD 0
> > Oops: 0000 [#1] PREEMPT SMP
> > last sysfs file:
> > /sys/devices/virtual/backlight/acpi_video0/actual_brightness CPU 0
> > Modules linked in: xt_tcpudp bridge stp llc autofs4 sunrpc ipv6
> > ipt_REJECT xt_physdev xt_state ]
> 
> Here's the fix I'm testing now.
works fine here for the ThinkPAd T400.
Thx.



-- 
MfG/Sincerely
Toralf Förster

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